| April 2023 | ||
| 19/04/23 | The alliance OB was founded. | |
Founding members::  hongkpng853 and samluk. | ||
 The alliance reaches a population more than 100. | ||
| 25/04/23 | The alliance reaches a population more than 1,000. | |
| May 2023 | ||
| 22/05/23 | Joining of:wangting. | |
| June 2023 | ||
| 03/06/23 | The alliance reaches a population more than 5,000. | |
| 26/06/23 | Deletion of:hongkpng853 and samluk. | |
| July 2023 | ||
| 26/07/23 | Leaving of:wangting. | |
| 27/07/23 | The alliance is now known as OB. | |
| Joining of:wangting. | ||